You've got a very warped view of what bad is. Before today, Abad's been pretty darn good this seaon. ERA for relievers doesn't mean jack, but for what it's worth it was 2.03 in 13 1/3 innings. It jumped up over 3 today. His WHIP before today was 0.975 and even now it's 1.098. Decent enough for a back of the pen guy.
And if a guy's going to have a bad outing, it may as well be in a game you weren't going to win anyway.
Oh, BTW, Cano has hit a few homers in his career; he's got to be approaching 300 if he's not over that mark.